Pathophysiology 1 Exam 2 Key Poin
What is the highest pressure in the Systolic pressure, which corresponds to the ejection of blood from
cardiac cycle called? the left ventricle into the aorta.
What is the lowest pressure in the Diastolic pressure, occurring at the end of diastole before the next
cardiac cycle called? ventricular contraction.
Blood pressure is the product of cardiac output (CO = heart rate ×
How is blood pressure calculated?
stroke volume) and systemic vascular resistance (SVR).
What creates most of the The arterioles create most of the resistance, and changes in their
resistance in the vascular diameter significantly affect SVR and blood pressure.
system?
What is the difference between Pulse pressure.
systolic and diastolic pressures
called?
What does MAP stand for and how is Mean Arterial Pressure (MAP) is the average pressure within the
it derived? systemic arterial system, mathematically derived from systolic and
diastolic pressures.
How can blood pressure be By using a catheter placed within an artery and specific computer software.
directly measured?
What is the common method for Auscultation, where systolic pressure is recorded at the onset of
measuring blood pressure? Korotkoff sounds and diastolic pressure at their disappearance.
What factors can lead to Missed auscultatory gaps, hydrostatic pressure changes
erroneous blood pressure from arm position, inappropriate cuff size, observer
readings? error, and other factors.
The interaction of carotid and aortic baroreceptors, the
What short-term mechanisms
vasomotor center in the brainstem, and the activation of the
regulate blood pressure?
sympathetic nervous system (SNS) and inhibition of the
parasympathetic nervous system (PSNS).
What is primarily involved in Heart rate and systemic vascular resistance (SVR).
short-term blood pressure
regulation?
, What is involved in long-term The nervous system, hormone release, and kidney responses to pressure
blood pressure regulation? changes.
What role does the vasomotor It continues to be involved when pressure changes are sensed by
center play in blood pressure baroreceptors.
regulation?
What hormones are involved in ADH (antidiuretic hormone), aldosterone, and angiotensin II.
blood pressure regulation?
How does angiotensin II affect blood It produces an increase in systemic vascular resistance (SVR).
pressure?
What is the role of natriuretic They contribute to long-term blood pressure regulation.
peptides in blood pressure
management?
What are the variables involved Heart rate, stroke volume, and systemic vascular resistance.
in long- term blood pressure
regulation?
What causes normal fluctuations in Cyclic patterns due to changes in the body's internal and external
blood pressure? environments.
Primary hypertension has no identifiable etiology, but risk factors
What is primary hypertension and
include age, dietary factors (excess sodium and obesity), ethnicity,
what are its risk factors?
family history, sedentary lifestyle, and tobacco use.
What defines normal blood A normal blood pressure is <120 mm Hg systolic and <80 mm Hg diastolic.
pressure in adults?
At what blood pressure values does Stage 1 hypertension begins with a systolic pressure of 140 mm Hg
stage 1 hypertension begin? or a diastolic pressure of 90 mm Hg.
What is prehypertension and Prehypertension is the range between normal blood pressure and
what should be done about it? stage 1 hypertension, and lifestyle changes should be initiated.
What are the main treatment Treatment includes lifestyle modifications to address modifiable
approaches for primary risk factors and drug therapy targeting heart rate, stroke volume,
hypertension? and systemic vascular resistance (SVR).
Secondary hypertension is caused by identifiable pathologic
What characterizes secondary
conditions or certain drugs or foods, and it is less common in
hypertension?
adults but the major cause of hypertension in children.
What are the potential Hypertension can lead to stroke, angina, myocardial infarction,
consequences of untreated heart failure, renal failure, and blindness caused by retinopathy.
hypertension?
How is extreme and rapidly It is classified into two groups: emergency hypertension (evidence
developing hypertension of end-organ damage) and urgency hypertension (no evidence
classified? of end-organ damage).
Orthostatic hypotension is an extreme response to the change from
What is orthostatic hypotension?
supine to upright position, characterized by inadequate activation
of short-term control mechanisms.
What symptoms are associated with Symptoms include dizziness, blurred vision, confusion, and
orthostatic hypotension? possible syncope, which may lead to injuries from falls.
What are some risk factors Orthostatic hypotension is associated with cardiovascular disease
What is the highest pressure in the Systolic pressure, which corresponds to the ejection of blood from
cardiac cycle called? the left ventricle into the aorta.
What is the lowest pressure in the Diastolic pressure, occurring at the end of diastole before the next
cardiac cycle called? ventricular contraction.
Blood pressure is the product of cardiac output (CO = heart rate ×
How is blood pressure calculated?
stroke volume) and systemic vascular resistance (SVR).
What creates most of the The arterioles create most of the resistance, and changes in their
resistance in the vascular diameter significantly affect SVR and blood pressure.
system?
What is the difference between Pulse pressure.
systolic and diastolic pressures
called?
What does MAP stand for and how is Mean Arterial Pressure (MAP) is the average pressure within the
it derived? systemic arterial system, mathematically derived from systolic and
diastolic pressures.
How can blood pressure be By using a catheter placed within an artery and specific computer software.
directly measured?
What is the common method for Auscultation, where systolic pressure is recorded at the onset of
measuring blood pressure? Korotkoff sounds and diastolic pressure at their disappearance.
What factors can lead to Missed auscultatory gaps, hydrostatic pressure changes
erroneous blood pressure from arm position, inappropriate cuff size, observer
readings? error, and other factors.
The interaction of carotid and aortic baroreceptors, the
What short-term mechanisms
vasomotor center in the brainstem, and the activation of the
regulate blood pressure?
sympathetic nervous system (SNS) and inhibition of the
parasympathetic nervous system (PSNS).
What is primarily involved in Heart rate and systemic vascular resistance (SVR).
short-term blood pressure
regulation?
, What is involved in long-term The nervous system, hormone release, and kidney responses to pressure
blood pressure regulation? changes.
What role does the vasomotor It continues to be involved when pressure changes are sensed by
center play in blood pressure baroreceptors.
regulation?
What hormones are involved in ADH (antidiuretic hormone), aldosterone, and angiotensin II.
blood pressure regulation?
How does angiotensin II affect blood It produces an increase in systemic vascular resistance (SVR).
pressure?
What is the role of natriuretic They contribute to long-term blood pressure regulation.
peptides in blood pressure
management?
What are the variables involved Heart rate, stroke volume, and systemic vascular resistance.
in long- term blood pressure
regulation?
What causes normal fluctuations in Cyclic patterns due to changes in the body's internal and external
blood pressure? environments.
Primary hypertension has no identifiable etiology, but risk factors
What is primary hypertension and
include age, dietary factors (excess sodium and obesity), ethnicity,
what are its risk factors?
family history, sedentary lifestyle, and tobacco use.
What defines normal blood A normal blood pressure is <120 mm Hg systolic and <80 mm Hg diastolic.
pressure in adults?
At what blood pressure values does Stage 1 hypertension begins with a systolic pressure of 140 mm Hg
stage 1 hypertension begin? or a diastolic pressure of 90 mm Hg.
What is prehypertension and Prehypertension is the range between normal blood pressure and
what should be done about it? stage 1 hypertension, and lifestyle changes should be initiated.
What are the main treatment Treatment includes lifestyle modifications to address modifiable
approaches for primary risk factors and drug therapy targeting heart rate, stroke volume,
hypertension? and systemic vascular resistance (SVR).
Secondary hypertension is caused by identifiable pathologic
What characterizes secondary
conditions or certain drugs or foods, and it is less common in
hypertension?
adults but the major cause of hypertension in children.
What are the potential Hypertension can lead to stroke, angina, myocardial infarction,
consequences of untreated heart failure, renal failure, and blindness caused by retinopathy.
hypertension?
How is extreme and rapidly It is classified into two groups: emergency hypertension (evidence
developing hypertension of end-organ damage) and urgency hypertension (no evidence
classified? of end-organ damage).
Orthostatic hypotension is an extreme response to the change from
What is orthostatic hypotension?
supine to upright position, characterized by inadequate activation
of short-term control mechanisms.
What symptoms are associated with Symptoms include dizziness, blurred vision, confusion, and
orthostatic hypotension? possible syncope, which may lead to injuries from falls.
What are some risk factors Orthostatic hypotension is associated with cardiovascular disease
